Improvement in machines for filling cartridge-shells with varnish



3 Sheets-Sheet 2. A. O. HOBBS. Machine for Filling Cartridge-Shells withVarnish.

No. 211,157. Patented Jan. 7, i879.

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, ALFRED O. HOBBS,

UNITED STATES ATENT FFICE.

METALLIC CARTRIDGE GQMPANY.

IMPROVEMENT lN MACHINES FOR FlLLlNG CARTRIDGE-SHELLS WITH VARNlSH.

Specification forming part of Letters Patent No 211,157, dated Januar 7,1879; application filed December 1, 1877.

Z all about it may concern:

Be it known that LALFnnD CHARLES Hones, of the city of Bridgeport, inthe county of Fairfield and State of Connecticut, have invented a newanduseful ll'lachinefor Varnishing the Intcriorot Cartridge-Shells, ofwhich the following is such a full, clear, and exact description as willenable others skilled in the art to which it most nearly appcrtains tomake and use the same, when taken in connection with the accompanyingdrawings, in which-- Figure 1 is a perspective view of my machine. Fig.is a sectional view. Fig. 3 is a perspective view of the holder-plate.Fig. 4 is a cross-section of the holder-plate, with the shells and thekeeper-plate used after the shells are filled in position. Fig. 5 is asection of the holderplate, with the shells andthe keeperplate usedprior to filling of the shells in position. Fig. 6 is a sectional viewof the cupplate and filling-plate in the position in which they are putwhen the cups are to be filled.

Fig. 7 is a sectional view of the same parts in posit-ion to empty thecontents of the cups in the shells below the filling-plate.

The chargeof gunpowder in a metallic shell injures the shell by thechemical action be-' tween the shell and the charge. To avoid thisinjurious effect to the shell I find it advantageous to coat theinterior surface of the shell with a varnish or other suitablesubstance.

When the coating is applied to the interior of a shell by a brush orany-of the well-known means, it is difficult to make the coatingcomplete. To avoid this difficulty it is best to fill the shell withvarnish, and thus make the contact between it and the interior surfacecomplete, when the superfluousvarnish is emptied put, leaving acompletely-covered interior surace.

My invention relates to a machine for coating the interior ofcartridge-shells; and consists of three parts--the plates to hold theshells, the machine to fill them, and the rails upon which they areplaced to drip.

The plates to hold the shells consist of the plate or metal sheet A,having holes a a through it at appropriate distances from one anotherand of such a size that the body of the shell wili, while the head ofthe shell will not pass through. At or near the corners of the sheet aresmaller holes I) l) to receive the lugs I) I) of the plate B, which isarranged to be placed onthe sheet A after the sheet has been filled withthe shells, so as to keep them from falling out when the plate is turnedover.

The machine consists of a frame, 0, having the uprights c c c c, onwhich is the filling-plate D, the cross-shaft E, and the bars for the Table k to rest upon. The filling-plate consists of a plate having holesbored through it at distances from one another corresponding with thedistances between the holes in the shell-holder. On the lower side ofthis plate, about each hole, is a projection to enter the shell, so thata close connection between the shell and the plate may be formed. Abovethe filling-plate is another plate, F. This measure or cup-pl ate, whichslides in grooves, bears upon the filling-plate D, and makes a water-tight' joint with it. This plate has holes bored through it the samedistance from one another as the holes in the fillingplate.

' On three sides of the cup-plate are cleats or sides, and on the fourthside a spout, G, which projects over the trough.

The cup-plate is arranged to slide in grooves, and is operated by thelever H, attached to it and to the frame of the machine.

VVhenthe lever, and consequently the cupplate, is in one position, theholes in the cupplate are closed by the filling-plate. Vi hen the leveris moved, and consequently the cupplate, the cups or perforations in thecup-plate are brought over the pcrforationsin the filling I plate.

On one side of the frame is attached the trough I, in which the varnishis placed, and from which it is dipped upon the cup-plate and into thecups.

A table, is, adjustable perpendicularly by means of the cams c 0 on theshaft E, is ar-- ranged below the filling plate. It restsupon thecross-bars or cleats on the uprights c of the frame when the shaft isturned so as to take the cams out of contact with the table. The crank Mis attached to the shaft E, which .is turned by the crank to raise andlower the table K.

The rails N N are placed at a distance from one another about equal tothe width of the shell-holder plate, so that they may receive theplate.When removed from the varnishingmaehine the rails are arranged to keepthe plate horizontal part of the time, and then turn at an angle, bymaking one rail higher than the other, so that the varnish which ad--heres to the shells may be collected in a drop on one side of the shelland fall off from it.

The keeper-plate B, having the lugs b b at its corners, is taken fromthe holder-plate and the plate B substituted for it, when the holder andshells are taken from the rails and passed into the furnace to dry,

The mode of operation is as follows: In each hole of the holder-plate ashell is placed, when the keeper-plate B is put on itand the shells, tokeep them from falling out when the holder-. plate is turned over. Theplates with the shells are then slid on the table of the machine. Theshaft E is turned, which brings the mouths of the shells in contact withthelower side of the filling-plate D. The plate F being in the positionshown in Fig. 6, the holes of the plate being closed by thefilling-plate I), varnish is poured over the cup-plate and the cupsfilled,

the superfi uous varnish returning to the trough I by the spout G. Thecup-plate is nowmoved by the lever H until the holes in it are directlyover the holes in the filling-plate, when the through the holes varnishin the cups passes in the filling-plate into the shells below. Theholder and shells are now removed from the machine by turning-the shaftE, and the cams c 0'- lowering the table and sliding the plate out. Theholder-plate is now placed on the rails N N so that the mouths of theshells will be down; The keeper-plate B is removed when the holder-plateis placed on the rails. The varnish in the shells runs out and iscollected in pans below. The rails are made one higher than the otherpart of the distance, so that the shells will be tipped, and the varnishwhich adheres to the shells is made to fall from them into pans placedbelow. The keeper-plate B is put on the holder-plate to keep the shellsfrom falling from their position in the holes of the holder-plate whenit is being removed from the rails and put in the furnace to dry.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is

1. The combination, in a cartrid ge-fillin g machine, of the fixedperforated feed-plate, re-

ciprocating cup-plate, and table, adjustable by the eccentrics, asspecified and set forth.

2. The combination of a fixed filling-plate and shell-holder and table,adjustable by the shaft and eccentrics, as specified and set forth.

- A. O. HOBBS. Witnesses:

SAMUEL T. HOUGHTON, CHAS. W. HAWLEY.

